I wan puzzled by the the question that when I must to use 'frame-rely map ip x.x.x.x dlci broadcast' command.
Dose reverse-arp tell me the dynamic mapping if I use partion mesh FR network and if I close reverse-arp,will I must set static map for each remote ospf router not directly connected? (Does it ralated to the 'ip ospf network'command?)
Typically, you only use the frame relay map command when you are configuring a multipoint frame realy interfaces. This tells the router which dlci to map to which remote ip address on what appears to be a broadcast interface (from the hub router's perspective). I've never seen aframe multipoint work with arp or reverse arp (again, the hub router thinks it's a broadcast segment, but each spoke thinks it's a point-to-point).
This doesn't relate to the ospf network command in any way. There are a number of ways you can run ospf over a frame multipoint network:
-- Create point-to-point subinterfaces, which will use more ip address space, but will make fast don detection possible, and make troubleshooting easier.
-- Use a single multipoint interface with the ip ospf network-type point-to-multipoint, which is simple to configure, and reduces the ip address space outlay, but it injects a lot of /32's into your ospf tables, which can impact convergence, etc.
-- Use a single multipoint interface with the ip ospf network-type broadcast command. Set each remote with an ospfpriority of 0, so only the hub can become the dr.
-- Use a single multipoint interface with the ip ospf network-type nonbroadcast, and then configure each remote router as a neighbor manually.
Which one of these you use is going to depend on which downside you like the best. :-)
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